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Ubuntu 12.04 ESM USN-3827-2 Critical: Samba Denial of Service Fix

ubuntu
Calendar Grey November 27, 2018
Dist Ubuntu Esm H88
Multiple Samba vulnerabilities resolved in Ubuntu 12.04 ESM, tackling potential DoS threats and providing upgrade guidelines.
Several security issues were fixed in Samba.

Summary

Several security issues were fixed in Samba.

Software Description:

- samba: SMB/CIFS file, print, and login server for Unix

Details:

USN-3827-1 fixed a vulnerability in samba. This update provides

the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

 Florian Stuelpner discovered that Samba incorrectly handled CNAME

 records. A remote attacker could use this issue to cause Samba to

 crash, resulting in a denial of service. (CVE-2018-14629)

 Alex MacCuish discovered that Samba incorrectly handled memory when

 configured to accept smart-card authentication. A remote attacker

 could possibly use this issue to cause Samba to crash, resulting in a

 denial of service. (CVE-2018-16841)

 Garming Sam discovered that Samba incorrectly handled memory when

 processing LDAP searches. A remote attacker could possibly use this

 issue to cause Samba to crash, resulting in a denial of service. 

 (CVE-2018-16851)

Topics%20covered

Topics Covered

security advisory denial of service critical samba ubuntu

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.04 ESM:
  samba                           2:3.6.25-0ubuntu0.12.04.16

In general, a standard system update will make all the necessary
changes.

References

  https://ubuntu.com/security/notices/USN-3827-2

  https://ubuntu.com/security/notices/USN-3827-1

  CVE-2018-14629, CVE-2018-16841, CVE-2018-16851

Severity
critical
Lowest
Low
Medium
High
Critical

November 27, 2018

Topics%20covered

Topics Covered

security advisory denial of service critical samba ubuntu

Package Information

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